KSZ9021GN TR Micrel Inc, KSZ9021GN TR Datasheet - Page 36

• Manufacturer Part Number: KSZ9021GN TR
• Description: Specifications: Number of Drivers/Receivers: 8/8 ; Type: Transceiver ; Voltage - Supply: 3.135 V ~ 3.465 V ; Package / Case: 64-VFQFN Exposed Pad ; Packaging: Tape & Reel (TR) ; Protocol: Gigabit Ethernet ; Lead Free Status: Lead Free ; RoHS Stat
• Manufacturer: Micrel Inc

Micrel, Inc.
Note:
1.
Vendor Specific Registers
September 2010
Address
Register 12 (Ch) – Extended Register – Data Write
12.15:0
Register 13 (Dh) – Extended Register – Data Read
13.15:0
Register 15 (Fh) – Extended – MII Status
15.15
15.14
15.13
15.12
15.11:0
Address
Register 17 (11h) – Remote Loopback, LED Mode
17.15:9
17.8
17.7:6
17.5:4
17.3
RW = Read/Write.
RO = Read only.
SC = Self-cleared.
LH = Latch high.
LL = Latch low.
Name
Extended
Register –
write
Extended
Register –
read
1000Base-X
Full-duplex
1000Base-X
Half-duplex
1000Base-T
Full-duplex
1000Base-T
Half-duplex
Reserved
Name
Reserved
Remote
Loopback
Reserved
Reserved
LED Test
Enable
Description
16-bit value to write to Extend Register Address
in register 11 (Bh) bits [7:0]
16-bit value read from Extend Register Address
in register 11 (Bh) bits [7:0]
1 = PHY able to perform 1000Base-X
0 = PHY not able to perform 1000Base-X
1 = PHY able to perform 1000Base-X
0 = PHY not able to perform 1000Base-X
1 = PHY able to perform 1000Base-T
0 = PHY not able to perform 1000Base-T
1 = PHY able to perform 1000Base-T
0 = PHY not able to perform 1000Base-T
Ignore when read
Description
1 = Enable Remote Loopback
0 = Disable Remote Loopback
1 = Enable LED test mode
0 = Disable LED test mode
full-duplex
full-duplex
half-duplex
half-duplex
full-duplex 1000BASE-X
full-duplex
half-duplex
half-duplex
36
Mode
RW
RO
RO
RO
RO
RO
RO
Mode
RW
RW
RW
RW
RW
(1)
(1)
Default
0000_0000_0000_0000
0000_0000_0000_0000
0
0
1
1
-
Default
0000_001
0
11
11
0
M9999-091010-1.1
KSZ9021GN